I think he has a problem with people making up nasty lies about each other.
Really? I've seen that happen several times on Dwilight, and it made for some interesting gameplay. For example, the forged letters to the Zuma;
Vellos Velax roleplaying that he took a dump on Mendicants bed and then planting a D'Haran flag; Malus Solari convincing the Lurias that D'Hara was plotting to invade.
All that makes for more interaction, which I think is a good thing, right?